Table 1.

Characteristics of the patients with AD

Characteristic	Patients (n)
Age, mean ± SD, years	72.6±9.2 (191)
Sex, % female	53.4 (102)
Ethnic
% Caucasian	82.2 (157)
% African-American	16.8 (32)
% Others	2.1 (4)
MMSE scores (max. 30), mean ± SD	23.3±5.6 (191)
Plasma variable, mean ± SD
Total homocysteine, μmol/l	10.6±3.6 (178)
Vitamin B12, pg/ml	515.7±289.4 (168)
Folate, ng/ml	17.1±4.2 (144)
Total cholesterol, mg/dl	212.1±45.7 (137)
LDL cholesterol, mg/dl	126.1±37.3 (132)
HDL cholesterol, mg/dl	53.8±17.4 (133)
Triglyceride, mg/dl	167.7±109.8 (134)